Tank-heater.



W. H. BRIGHT.

TANK HEATER.-

APPLICATION FILED FEB.27,1911.

UNITED STATES; PATENTFFC;

' WARREN H. nnienr, OFMINNEAPOLIS, MINNESOTA y specification of Letter`raient.

Application filed February 527, 1911.' Serial No. 611,035.

'of the inventiomsnch es will enable others skilled-in the arrete whichit eppertains to Ineke and use theSeme. i

My invention has -ior its object to provide un improved tank heater eseeielly adapted for use in connectionl with ict Water tanks of the typeused to supply het waterfor kitchens, `but-h und similar purposes.

To such ends, the invention consists of the novel devices andcombinations of devices hereinafter described and defined, in

the claim. .c

, The invention is illustrated in the single View ofoccompenyingdrawing'. The hot water tank l, is shown us supported by legs l and isprovided withA o cold water supply pipe 2 sind o hot water dise churgepipe 3, seid ports being of standard construction.

The so-celled boiler muy take various torms,.but us preferred und usshown in the drawing. it is in. the form of o copper .coil 4l thatsurrounds the lower und outer end portionsof the water conduit tube 5that exti'rtls'iaxiully through the bottom of the tank 1 und is, otcourse, yconnected to the .su-id tunk bottom by o witter tight ljoint.

The lower Yend'ot they tube. 5 is closed ybut the 'upper end thereof isconnected to the lower end of the hot water delivery pipe -6 thatextends. ,nearly to the top of the tank. This water conduit tube 5 isdivided into two compartments or chon-v toni.

nels 5 und 5", by moons of an oblique or diagonal partition 7. Thispartition 7 eX- tcnds from u. point considerably above and to pointconsiderably below the tank bot- The channel 5a is the cold water return. channel, while the channel 5b is the hot Writer delivery channel,und itis importent to note vthat the oblique `pertition 7 makes. both ofthese channels or inl creuse in cross-section in the direction of theiow'of water therethrough. s shown,

vthe oblique partition -both'at its upperand lower extremities is riidly secured tothe walls of the tube 5.--v 'lie upper extl'omit'.y

ofthe channel 5 is in' communication wit the bottom of the tank by aport 8 formed in one wall ,of the tube 5. The boiler coil 4 at its lowerextremity is-tapped Iinto or' connected to the lower extremity 'of thecold water return channel 5, Whereas,theupper extremity of the saidcoilis tapped into or connected tothe lower portion ofthefhfotv waterdelivery channel 5?.v

The numeral 9 indicatesedrain pipe which leeds from the bottom 'ofthechannel a normally closed valve, not shown, The numeral 10 indicatesa," gosehurner located below the lowerendfthetube 5 and, asshown,supportcdby a door .bracket 11. This burner 10 is shown'as ,providedwith e valved gas or oil Vsupply pipelQ; J'

The numerai 1'3 indicatesa, housingor hood whichis attached to thetube-5` and .5% and, in practice, Will b3ltr-"WMM 'with incloses the boilercoil 4 so that the heat Patented sept. 3, 19'12.'

from the burner "10 will be eve'ntuully ap-'fz plied to the seid coil.

Obviously, the circuletlon of the walterheoted in the coil 4 will beupward through the conduits 5* und 6 to the top of the tank, 1

ond from thence, to the bottom of the'tenk und downward through theconduit 5. By inc-reusing the cross-section, and hence, 'the conductingcapacity ofthe conduits 5'L und 5" in the direction of the flow ofthe'water therethrough, danger of blocking .by ,the collection otsediment is avoided and better circulation ot the water through the tankis maintained As shown, the cold water return and hot water deliverychannels of the-'tube 5 are increased in cross-section und in conductingcapacity in the direction ofthe flow of the walter therethrough.

What I claim is:

The oombiniitionwith a water tank, off u boiler located below thesume, atube ezt-,l y

tending from said boiler upward into the V`1` seid tank and providedwith; Jen oblique longitudinol partition dividing the` 'saidgv l Itubeinto cold Water returnavnd loot-Water,

delivery ehannels, both connecting the Sa-Iid hoilerfand the said tankfor the circulation VovthehWaterv of the tank therethrough, the

said -.-.fehanne1s bein increased in crossv `seetio and eonductmgcapacity in the dle'et'in of the ow of the Water therethrough.

WARREN H: BRIGHT.

Witnesses:

HARRY D. KILGORE, ALICE V. SWANSON.

